Computing-pump apparatus.



No. 816,305. PA']."L.`N'IED` MAR. 27, 1906. P. P. DUNN.

COMPUTING PUMP APPARATUS.

` APPLICATION FILED JULYla. 1905.

2 SHBETS-SHEET l.

HAI

No. 816,305. PATENTED MAR. 27, 1906.

P. P. DUNN.

yCOMPUTING PUMP APPARATUS. APPLIGATION'PILED JULYls, 1905.

2 SHEETS-SHEET 2.

FUNITED STATES' PATENT OFFICE.

FRANK P. DUNN, OF ANDERSON, INDIANA, ASSIGNOR TO THE ANDER- SON TOOLCOMPANY, OF ANDERSON, INDIANA, A CORPORATION OF INDIANA.

Specification of Letters Patent.

Patented March 27, 1906.

Application led July 13, 1905. Serial Nor. 269,565.

To all whom t may concern:

Be it known that I, FRANK P. DUNN, of Anderson, county of Madison, andState of Indiana, have invented a certain new and useful Com 'ating-PumpAp aratus; andll do hereby dec are that the fo lowing is a full, clear,and exact description thereof, reference being had to the accompanyingdrawings, in which like numerals refer to like parts.

The object of this invention is to make'a practical and usefulcomputing-pump appa- Av ratus, especially in combination with tanks,

barrels, cans, and similar vessels. The various features of theinvention will be understood from the accompanying drawings and thefollowing` description and claims.

Invthe drawings, Fit-ure 1 is a central vertical section through thedevice. Fig. 2 is a central vertical section of the funnel and a sideelevation of a art of the outlet-tube, showing the funnel e evated. Fig.3 is a section on the line 3 3 of Fig. l. Fig. 4 is a front elevation ofthe means for guiding and actuating the piston-rod and the scales, thepiston-rod being partially elevated. Fig. 5 is an elevation oftheright-hand side of what is shown in Fig. 4 with parts broken away. Fig.'is a section on the line 6 6 of Fig. 5. Fig. 7' is a side elevation ofthe adjustable stop and the meanscto which it is attached, the latterbeing partly broken away. Fig.'8 is a section on the line 8 8 of Fig. 7.

In the first place I make a tank, the side walls 16 of which are made ofsheet metal and the top 11 and bottom 12 are made of castiron, so thatthe tank will be strong, and a firm unyielding top will be mounting theump. It has a rain-inlet at 13, which is a( a ted to receive and holdthe bottom of the oi -can or other vessel While it is being charged bythe pump.

The pum -cylinder 14 is secured to the top of the vesse and extends downnearl f to the bottom, having at its lower'end a valve-seat 15, which isclosed by a valve 16, the stem 17 of which is vertically movable througha guide-plate 18 in the removable end piece 19, that'screws into thelower end of the cylinder and isfsoldered or otherwise made air-tight;The piston 20 has a piston-rod 21 secured to it, which at its upper endis enlarged and squared and has a rack on the rear side of it. Upon thetop of the vessel or tank a plate 22 is Secured having upright pieces 23extend'- rovided for ing from it to form a guide for the upper end ofthe piston-rod. These uprig ts are widened into plates, as shown in'Fig. 5, so that the rod 24 is fulcrumed therein, said rod havingsecuredto it the segment 25,.that meshes with .the rack 2l for actuatingthe piston-rod. The lever 26 on the rod 24 operates the segment. To theupper end of the guidingieces 23 a plate 27 is secured, as seen in igs.4 and 5, on the front side, and to the rear a plate 28 is secured tohold said guide-pieces iii-place.

A quantity or measurement scale is marked on the left-hand guide-piece23, as seen in Fig. 4. The numerals in that scale indicate quarts, andthe lines or marks indicate pints.

rotary scale-bar 31 is mounted between the plate 22 at the bottom andthe late 32, extending from the top of one of t e ieces 23, as ap earsin Fig. 4. Said scalear is hexagona and on each face a price or valuescale is marked. At the upper end the rices per gallon are placed, thoseshown in iv. 4

eing eighteen and twenty cents per gallon, respectively. On the portionof the scalebar below the top the numerals indicate cents, the scalebeing placed to suit the different prices per gallon. On these faces thedifferent scales are therefore found, and by turning the nut 33 at theupper end one of said six faces may be turned to the front, and by meansof the set-screw 34, operatin through the lu 35, the scale-bar may behel in any desire osition. A pointer 36 extends from the liig 37 on theupper art of the piston-rod 21. Said lu extends t ough the front slot 38between t e upright ieces 23 and moves up and down along sai slot. Theointer 36 points to both the quantity and t e value scales.

If in o eration one wishes one quart of liquid, he elbvates the lever 26until the pointer 36 reaches the numeral 1 o n the uantityscale. Thatcauses the piston to dlraw into the cylinder one quart of fluid. Then bydepressin the lever 26 a quart will be discharge If a complete stroke ofthe lever 26 is made, rais' the pointer 36 to the top, one-half gallon oliquid will be discharged. If one wants four cents worth of fluid, thelever 26 is elevated until the pointer is opposite the numeral 4, asshown in Fig. 4, and that will draw four cents worth of the fluid intothe cylinder, `and when the lever is de- IOO pressed four cents worthwill be discharged. For fluid of varying prices the scale-bar 31 isturned so as to presentthe correct price per gallon to the front.In'this connection I also provide an adjustable stop 4() by aid of a bar41 to the side of the left-hand upright piece 23, so as to make a slot'42, and through that a square-shanked rod 45 extends with a head 43. Onthe square portion of said rod 45 a downwardly-extending indicator 44 isplaced having two pointers, one at each scale, and said indicator isintegral with the stop 40, the latter being mounted on said rod 45 also.The front end of the rod 45 is threaded to receive a thumb-nut 47whereby the stop and indicator may be clamped at any desired point withreference to the two scales. This stop is useful when it is desired torepeatedly discharge a uniform `quantity of liquid at each completeoperation of the lever. Thus if the stop is set as in Fig. 4 six centsworth of fluid will be discharged at every complete operation of thelever 26,. as the upward movement ofl the piston-rod will be limited bythe stop engaging the lug 37 on the piston-rod that carries the pointer36, and the pointer 36 thereon will agree with the pointers on the*indicators 44. When it is not desired to use the adjustable stop, it maybe moved to the' top and left there, where it will be out of the way ofthe pointer 36. A removable 'funnel 50 is provided with a top vcross-piece 51, having a hole in it through which .the downwardly-turneddischarge end 0f the discharge-pipe 52 extends loosely. A nut `53 issecured to the disdharge end of the pipe 52 to permit the funnel to beslipped up on the end of the discharge-pipe as the vessel or oil-can ismoved into place under it to be filledand then the funnel is droppeddown with its small end extending into the mouth of the oil-can or othervessel. This construction prevents the misplacement of the funnel. It isalways in place, and it does not prevent putting vessels in place to befilled or removing the same.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. In a coinputing-pum p apparatus, the combination with the piston-rod,of la stationary scale with graduations that indicate the extent ofmovement of the piston-rod reuired to discharge any desired quantity ofuid at one operation of the piston-rod, and an adjustable stop movableadjacent the scale and copera'tlng with the graduations thereon thatlimits'the movement of the piston-rod whereby at each complete operationthereof a uniform quantity of fluid will be discharged.

2. In a computing-pump apparatus, tlie combination wi th the piston-rod,of a stationary scale with graduations that indicate the extent ofmovement of the piston-rod required to discharge fluid of any desiredvalue at one operation of the piston-rod, and an adjustable st opmovable adjacent said scale and coperating with the graduations thereonthat limits the movement of the pistonrod whereby fluid of unity ofvalue will be discharged at each complete operation of the piston-rod.

` 3. In a computing-pump apparatus, the combination Withthe piston-rod,of a stationary quantity-scale with graduations that indicate the extentof movement of the piston-rod required to discharge Huid of any desiredquantity at one operation of the pistonrod, a vertically-stationaryvalue-scale parallel with said quantity-scale with graduations thatindicates the extent of movement of the piston-'rod required todischarge fluid of any desired value at one operation of the piston-rod,a pointer connected with said piston-rod extending t0 both of saidscales, and an adjustable stop in the path of said pointer and which ismovable adjacent said scales and coperating with the graduationsthereon.

4. In a computing-pump apparatus, the combination of a piston-rod with arack on the upper end thereof, a guide for the movement of saidpiston-rod slotted vertically on two opposite sides, a scale parallelwith said guide, indicating means extending from the piston-rod throughone of said slots to said scale, a lever, and an actuating segmentoperated thereby and extending through the other one of said slots inconnection with said rack for operating the piston-rod.

5. The combination with a tank, of a pump-cylinder secured to the topthereof and extending down into the tank, a discharge- IOO tube leadingfrom the lower part of said cyl-- inderup lthrough the top of the tank,a pistonrod extendingup through the top of said tank, a guide for thepiston-rod secured upon the top of said tank, means mounted inconnection with said guide for actuating the piston-rod, a scale securedto said guide and parallel therewith, apointer on the piston-rod andextending to said scale, and an adjustable stop mounted on said guidefor limiting the movement of the piston-rod and setting the device sothat it will discharge a uniform quantity of lluid at each completeoperation of the piston-rod.

' In witness whereof I have hereunto allixed my signature in thepresence of the witnesses herein named FRANK P. DUNN.

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